:root{--bg-light: #f6f6f7;--text-light: #111;--header-light: #fff;--border-light: #ccc;--surface-light: #fff;--muted-light: #666;--stripe-odd-light: #f2f2f2;--bg-dark: #121212;--text-dark: #f5f5f5;--header-dark: #1a1a1a;--border-dark: #333;--surface-dark: #1e1e1e;--muted-dark: #aaa;--stripe-odd-dark: #2a2a2a;--green: #4caf50;--red: #e74c3c;--gray: #95a5a6;--orange: #f39c12}*{box-sizing:border-box}body{font-family:Rubik,sans-serif;background:var(--bg-light);color:var(--text-light);margin:0;transition:background .4s,color .4s}body.dark{background:var(--bg-dark);color:var(--text-dark)}.tc-header{position:sticky;top:0;z-index:2000;display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-light);background:var(--header-light);transition:background .3s,border .3s}body.dark 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